A young man has faced court for allegedly setting fire to an Adelaide teenager.

Luke Coburn, now 18, was doused in a flammable liquid and set alight by two people in the garage of his home at Munno Para West in January last year.

One of his alleged attackers, Joshua William Lomas, 21, was arrested only last month and charged with acts to endanger life.

The victim's mother Cheryl Coburn says her son is learning to live with the physical and emotional scars of the attack.

"He had burns to 28 per cent of his body, a full skin graft on his left arm, his face with second-degree [burns], neck second-degree, he had third-degree on his ear so he almost lost his ear. He had it on his back and he had a full skin graft on his leg," she said.

She says she too has struggled to cope since the attack.

"It was really hard for me, really hard, I fell over a lot of times actually," she said.